baber/WOPTO huggingface dataset:
Patent GB-1119406-A (GB)
Title: Nozzle type centrifugal machines
IPC: B04B1/08
Filed: 1965-08-03
Abstract: 1,119,406. Centrifugal separator. DORROLIVER Inc. 3 Aug., 1965 [19 Aug., 1964], No. 33108/65. Heading B2P. The rotor of a centrifuge for separating crude oil into an oil fraction, a water fraction and a water-solids mixture or sludge fraction comprises a separating chamber 13 of doublecone-shaped configuration defined by conical portions of interlocked lower and upper members 11, 12 of the rotor bowl and containing a stack of frusto-conical separator discs 35. The lower member 11 is closed at its bottom end by means of an integral hub portion 14 to which the rotor shaft 21 is secured. A feed distributor 22 mounted within the rotor bowl has a slightly upwardly tapered top end portion 23 provided internally with impeller ribs 25 and externally with ribs 26 defining channels 28 for the flow of the separated oil fraction from between the discs 35 towards an overflow edge 20. The distributor has a flared intermediate portion 29 formed on its underside with radially extending Channels which together with the hub portion constitute feed conduits 29a, Fig. 3 (not shown), for conveying the crude oil feed into vertical perforated feed distribution tubes 29c penetrating the stack of discs. A lower, frusto-conical, upturned portion 30 of the distributor is formed with fan-shaped recesses 31, Fig. 5 (not shown), which together with the adjoining wall of the rotor bowl constitutes the wide-mouth entrance sections 31a of a set of convergent outflow conduits L for the separated water fraction. These recesses 31 are located opposite sludge discharge nozzles 16, Fig. 2 (not shown), and alternate with inwardly facing recesses 32 which accommodate divergently extending inflow conduits 33 extending into passages 34 in the hub portion 14. A detachable annular structure S is connected to the underside of the hub portion 14 and accommodates a hollow insert member 42 defining a downwardly open annular chamber D into which the water fraction flows from the wide-mouth section 31 a via convergent tubular members 48 located in openings 46, 47 in the member 42 and the hub portion 14 respectively. The water fraction, discharges over a dam 45 at the bottom of the chamber D. The hub portion 14, the structure S and the member 42 together define a chamber 43 which is adapted to receive return sludge with or without wash water auxiliary liquid, or auxiliary liquid only, which is urged by vanes 55 through the conduits 33 into the separating chamber 13 in the region between the nozzles 16.
Patent GB-1322367-A (GB)
Title: Filling of leather
IPC: C14C9/00
Filed: 1970-07-08
Abstract: 1322367 Filling tanned leather CIBAGEIGY AG 8 July 1970 [9 July 1969] 33186/70 Heading C6C  Leather is filled, after tanning with mineral, vegetable and/or synthetic tanning agents, by treating it, at a pH above 7, with an aqueous solution of a filling agent consisting of a polymer selected from unsubstituted and substituted homo- or copolymeric acrylic acids, and animal protein glue, e.g. glue prepared from animal materials containing collagen by extraction of the albuminus substance therefrom, the weight ratio of polymer to glue being within the range 1:12 to 12:1. The polymer may be in the form of an alkali metal salt or an ammonium salt, alone or in admixture with the corresponding free polycarboxylic acid. A water-soluble homopolymer of acrylic acid or methacrylic acid, or a mixture thereof with a corresponding alkali metal or ammonium salt of the acid, is preferred. The preferred weight ratio of polymer to glue is in the range 1:1 to 1:6. The aqueous solution may include a tanning agent as a further additive, and is then prepared from a concentrated, liquid, water-soluble composition which, calculated on the total weight of the composition, contains (a) from 0 to 30 per cent by weight of tanning agent, (b) from 5 to 40 per cent by weight of the filling agent, the balance consisting of (c) water, and the composition having a pH of at least 4À0. Many specific examples of such compositions and of the filling agent are described.
Patent GB-733468-A (GB)
Title: Improvements in pedal cycles with or without an auxiliary engine
IPC: B62J25/00
Filed: 1953-11-30
Abstract: 733,468. Cycle foot-rests. SOC. D'APPAREILS DE CONTROLE ET D'EQUIPMENT DES MOTEURS S.A.C.E.M. Nov. 30, 1953 [Dec. 10, 1952], No. 33200/53. Class 136(3). In a pedal driven cycle with or without an auxiliary engine comprising a transverse spindle 3 carrying a chain wheel 4 and two crank levers 2 supporting the pedals 5, at least one horizontal support 13 is provided between the crank levers 2 at a level higher than the chain wheel 4, the support extending frontwardly into the vicinity of the front wheel 14 and being shaped to constitute a foot rest for the cyclist. Two supports 13 may be provided each constituted by a metal plate having downwardly bent edges. The support 13 shown is of U-shape cross-section and serves to protect the chain both from the top and from the sides. The cycle frame comprises a single tube 1 carrying a sleeve 6 for the front wheel fork and a sleeve 7 in which the spindle 3 is journalled. The seat pillar 9 and chain stays 8 are secured to the tube 1 by bolts 10, 11.
Patent GB-1528046-A (GB)
Title: Double clamping device and to a liquid flow assembly employing the clamping device
IPC: F16K7/06
Filed: 1976-10-25
Abstract: 1528046 Pinchcocks CAMDEN & ISLING- TON AREA HEALTH AUTHORITY 25 Oct 1976 [11 Aug 1975] 33353/75 Heading F2V A pinch clamp for use with a blood dialysis system comprises a housing 1 defining slots 4, (5) for receiving respective conduits, and members 9, (10) mounted for independent oscillation on a common shaft 11 and arranged to be movable by cables 12, (13) to compress the respective conduits against a wall 6 of the housing, and means, such as windows 2. (3), whereby the respective clamping regions can be inspected. The members 9, (10) are biased to the non-clamping positions by springs 14, (15) and the clamping is limited by adjustable stops 16, (17). The clamp is intended to be strapped to a patient's arm, and the cables 12, (13) are connected to linear solenoids (23), (24) in a control unit (20).
Patent GB-445725-A (GB)
Title: Improvements in heels for boots and shoes having heel tips inserted therein
IPC: A43C13/02
Filed: 1934-11-20
Abstract: 445,725. Heel protectors. LOTUS, Ltd., and BREAM, E. S., 193, Sandon Road, Stafford. Nov. 20, 1934, No. 33358. [Class 17 (iii)] In fitting a quarter tip D provided with an attaching flange d to a heel A, the upper grain face of the lift B is cut away and scarfed to accommodate the flange d of the tip, the wearing face of the tip being flush with the wearing face of a top piece C. The arrangement provides for the lift B and top piece C presenting their flesh sides to one another, which lends itself to better adhesive attachment. Nails e penetrate the top piece C and flange d of the quarter tip and engage the heel. Specification 214,106, [Class 17 (iii)], is referred to.
Patent GB-1187875-A (GB)
Title: Polymerisation Process and Catalyst.
IPC: C08F4/24
Filed: 1968-07-12
Abstract: 1,187,875. Polymerisation catalyst. PHILLIPS PETROLEUM CO. 12 July, 1968 [13 July, 1967], No. 33409/68. Addition to 1,114,380. Heading B1E. [Also in Division C3] A polymerisation catalyst comprises the product formed on mixing (1) CrO 3  associated with one or more oxides from the following viz: SiO 2 , Al 2 O 3 , ZrO 2  and ThO 2 , (2) one or more organozinc compounds of formula ZnR 2 , where R represents H or an alkyl, cycloalkyl or aryl group or a group which is a combination of two or more of the foregoing groups, such as alkaryl, aralkyl or alkylcycloalkyl, it being provided that at least one of said R groups is an organic group of the types specified, and (3) one or more B compounds being boranes containing from 2-10 boron atoms and/or organoboron compounds of formula BR 3 , where at least one R group is of the type specified, wherein the amount of the Zn component is less than 2% but not less than 0.1% based on the weight of the CrO 3  component, and/or the amount of the B component is less than 0.5% but not less than 0.05% based on the weight of the CrO 3 . Parent mentions treating the oxide support with fluoride such as HF, hydrated AlF 3  and ammonium fluorosilicate.
Patent GB-1441814-A (GB)
Title: Thermosetting acrylic powders
IPC: C09D5/46
Filed: 1973-07-13
Abstract: 1441814 Telechelic or semi-telechelic polymers; thermosetting polymer compositions UCB 11 July 1974 [13 July 1973] 33431/73 Headings C3B C3P and C3R Telechelic or semi-telechelic polymers have average composition of the formula where V is a hydrogen atom or Z, X is a radical originating from an ethylenically unsaturated monomer carrying a polymerizable group and at least one other of the groups -OH, (R and R<SP>1</SP> which may be the same or different being hydrogen atoms or lower alkyl radicals), COOH or anhydride or an epoxy group, Y is a radical originating from an ethylenically unsaturated monomer carrying only a group, 2 is a hydrocarbon radical carrying at least one -OH, -COOH or -NH 2  group, x is 0 or a number from 1-10, y is the required number of molecules of the ethylenically unsaturated monomer Y to ensure that the molecular weight of the polymer chain is from 2000-8000 and has a glass transition temperature of from 40 to 80C., the x radicals X and the y radical Y being statistically distributed along the polymer chain according to polymerization kinetics. Monomer X is preferably derived from anallyl alcohol, acrylic acid, methacrylic acid, maleic acid and anhydride, fumaric acid and anhydride, itaconic acid and anhydride, acrylaminoglycolic acid, hydroxy-C 2 -C 4  alkyl acrylate, hydroxy-C 2 -C 4  alkyl methacrylate, glycidyl acrylate, glycidyl methacrylate, C 1 -C 8 -alkyl monomaleate, C 1 -C 8 - alkyl monofumarate, N-methylolacrylamide, N - methylolmethacrylamide, N - C 1 -C 4 - alkoxy - methylacrylamide, N - C 1 -C 4  - alkoxymethyl - methacrylamide, diacetone acrylemide and diacetone methacrylamide. Monomer Y is preferably derived from a C 1 -C 8  alkyl acrylate, a C 1 -C 8 -alkyl methacrylate, acrylamide, methacrylamide, acrylonitrile, methacrylonitrile, vinyl acetate, styrene, α-methylstyrene or a vinyl ether. The group(s) Z may be derived from a mercaptan transfer agent (ZH), e.g. thioglycolic acid, thiolactic acid, 3-mercaptopropionic acid, thiomalic acid, #-mercaptoethanol, 1-thioglycerol, cysteamine, or a lower alkyl ester of cysteine, or from a radical polymerization initiator (Z-Z), e.g. 4,4<SP>1</SP>-azo-bis- (4 - cyanopentanoic) acid and 3,3<SP>1</SP> - bis - azo- (3-cyanobutanol). The product may be used as the basis of a thermosetting acrylic powder, the other ingredients of which include cross-linking agents, pigment, filler, catalyst and other conventional additives.
Patent GB-931310-A (GB)
Title: Improvements in or relating to flight training apparatus
Inventor: BLACKADDER ALEXANDER RICHARD
IPC: G09B9/30
Filed: 1961-09-19
Abstract: 931,310. Grounded aircraft trainers. COMMUNICATIONS PATENTS Ltd. Sept. 19, 1961, No. 33538/61. Class 4. A ground based flight training apparatus for simulating visual effects corresponding to those provided to an aircraft by a surface-located visual navigational aid, comprises at least one light source associated with a representation 56 of a landing area, the representation being viewed by an optical viewing device moving in accordance with the simulated or computed movement of an aircraft, the light source being positioned correspondingly to a light projection unit of said navigational aid, and means for varying the character of the light transmitted from the source in accordance with the simulated or computed movement of the aircraft. The navigational aid is of the type having a light beam or beams having cross-sectional areas of different colour in a predetermined relationship to the axis of the beam. Computor 20 produces a signal representing the height of the axis of the projected light beam at an instantaneous horizontal distance of the simulated aircraft from a reference point which is supplied with a signal from potentiometer 36 corresponding to the simulated height of the aircraft, to terminals 37, 38 respectively of amplifier 41, resistors 39, 40 being such that the input signal to amplifier 41 is zero when the simulated aircraft is on the ideal glide path. When on glide path, no signal is fed to amplifiers 47, 48 and relays 49, 63 are de-energized; contacts 51, 51<SP>1</SP> and 65, 65<SP>1</SP> are closed and solenoids 52, 66 energized to move the red portion 60<SP>1</SP> and the transparent portion of filters 60, 72 respectively over slits 59, 71 to direct red and white light on to prisms 55, 70 respectively, mounted on representation 56 over which the simulated flight takes place. When simulated aircraft is above the ideal glide path, the phase of signal at terminals 43, 45 corresponds to that at terminal 38; the amplifiers 47, 48 include phase sensitive rectifiers so that coil 49 only is energised to close contacts 51, 51<SP>11</SP> and solenoid 53 moves the transparent filter portion 60<SP>1</SP> over gap 59 so that both prisms produce white beams. When aircraft is below the ideal glide path, the phase of the signal at terminals 43, 45 corresponds to that at terminal 37, coil 63 only is energized to close contacts 65, 6511 to bring the red portion of filter 72 over the gap 71, so that both prisms show red beams. The visual effects as seen by a moving television camera corresponds to those observed in actual flight. The transistory pink stage observed in actual flight can be produced by mechanical delay units but in Fig. 4 (not shown), rotatable discs having a transparent, a red and a pink portion are used to cover the slits 59, 71.
Patent GB-827042-A (GB)
Title: Improvements relating to sound insulating and absorbing panels
IPC: E04B1/84
Filed: 1957-10-28
Abstract: 827,042. Laminates; sound-insulating fibreboard &c. SOC. APPLICAZIONI GOMMA ANTIVIBRANTI S.A.G.A., S.p.A. Oct. 28, 1957 [March 18, 1957], No. 33591/57. Classes 96 and 140. A sound insulating and absorbing panel comprises a pair of mutually opposed walls (1, 2) of sheet material forming respectively the front wall and rear wall of the panel, said walls being spaced from one another, a plurality of holes (5) extending through the wall forming the front wall and a plurality of cavity resonators (4, 6) confined between the front and rear walls and responsive to at least two different acoustic frequencies, each of the resonators being in communication with the atmosphere ambient to the panel by way of at least one of said holes, and the front wall, with or without also the rear wall, being of non-planar form, e.g. undulating cross-sectional form or embossed form. As shown, the resonators are of trapezoidal cross-sectional form, being separated by transverse partitions 3 extending across the interior space of the panel at alternately opposite inclinations to the front and rear walls. Alternate resonators 4 have their bases adjacent to the front wall and are accessible through a greater number of holes 5 than are the resonators 6 which have their apices towards the front wall. The resonators 4 are filled with a suitable (e.g. fibrous) sound-absorbing filling. The rear wall may be flat. The front wall 1, rear wall 2, and partitions 3 may be of sheet-metal (e.g. aluminium), a suitable plastic (e.g. synthetic resin) or a suitable cardboard or like material, or the front wall may be of wood. Specification 822,954 is referred to.
Patent GB-648291-A (GB)
Title: Electron discharge apparatus
IPC: H01J23/24
Filed: 1947-12-19
Abstract: 648,291. Wave-guides. STANDARD TELEPHONES & CABLES, Ltd. Dec. 19, 1947, No. 33621. Convention date, Dec. 19, 1946. [Class 40 (viii)] [Also in Group XL (a)] A wave-guide for use with a travelling wave tube (see Group XL (a)), comprises a circular metal tube 6 with a filling 9 of material of a high dielectric constant which is provided with a passage through which the electron beam may travel. The diameter of the tube 6 is preferably twice the diameter of the passage. Suitable materials for the dielectric are titanates of barium, strontium or calcium, two or more of which may be compounded with a binder either in ceramic or plastic form and may have a dielectric constant between 100 and 200. The circular guide 6 supports a TM 01  mode and is coupled at its ends by known means to rectangular wave-guides supporting the TE 10  mode. To avoid reflections at the junctions of the waveguides the boundary plane of the dielectric 9 should be tilted at a suitable angle to the plane of the cross-section of the rectangular waveguide ; preferably the high and low points of the boundary plane at its intersection with the rectangular guide walls are diagonally opposed so that the boundary itself is diamond-shaped.
Patent GB-873091-A (GB)
Title: Improvements in steering mechanism
Inventor: ADAMS FREDERICK JOHN
IPC: B62D5/24
Filed: 1957-10-29
Abstract: 873,091. Vehicle power steering. HYDROSTEER Ltd. April 21, 1958 [Oct. 29, 1957], No. 33705/57. Class 79(5). In a power-steering mechanism for a vehicle a double acting ram 12 Fig. 1 and cylinder 17 together with the control valve 24 are assembled as a unit coaxially with the steering column 1 and are inserted in a hollow extension 18 of the steering gear housing 9, a passage 19 between the cylinder 17 and housing 18 permitting the flow of pressure fluid to the remote side of the ram 12. The valve body 23 is located in the housing 18 by a locking ring 35 and has a passage 28 for the flow of pressure fluid to the adjacent end of the cylinder 17. The steering gear is actuated by a screw 2 and ball nut 3, the latter being coupled to the ram 12 through a flanged extension tube 10 and circlips 13 permitting partial rotation of the nut 3 resulting from movements of the steering gear through a ball 4 and rocker arm 5. The valve 24 may be actuated through a helical spring means 31 described in Specification- 873,092, endwise movement of the column 1 actuating the valve 24 through a thrust ball race 32. In a modification (Fig. 2, not shown) the screw 2 has limited axial movement and the column 1 is mounted on needle roller bearings which permit the column 1 and screw 2 assembly to move axially in operating the valve.
Patent GB-618832-A (GB)
Title: Improvements in retaining rings
IPC: F16B21/16
Filed: 1946-11-13
Abstract: 618,832. Circlips. WALDES KOH-I-NOOR, Inc. Nov. 13, 1946, No. 33757. Convention date, July 3. [Class 89 (ii)] Circlips to form retaining shoulders on shafts for machine parts are formed in halves with hook like ends 18 shaped to interlock. The radius of the inner surface, in the free state, is slightly less than that of the bottom of the shaft groove, and this surface is cut away at C to increase the flexibility.
Patent GB-1198430-A (GB)
Title: Production of Caprolactam
Inventor: HARRIS BRIAN WALTON
IPC: C07D201/02
Filed: 1967-11-09
Abstract: 1,198,430. Caprolactam. BP CHEMICALS (U.K.) Ltd. 14 Oct., 1968 [9 Nov., 1967; 16 July, 1968], Nos. 51095/67 and 33761/68. Addition to 1,198,427. Heading C2C. Caprolactam is prepared by heating together 1,1<SP>1</SP> - peroxydicyclohexylamine and a lithium halide in a molten caprolactam environment. Cyclohexanone is also formed. The peroxy compound may be fed as a solid, as a melt or as an oil containing some cyclohexanone. The halide may be fed as a solid or in solution in caprolactam, e.g. a recycle stream. Reaction may be effected batchwise or continuously, e.g. in stirred or tubular reactors. By-products include n-caproamide, 5-hexenamide, 6-chlorocaproamide, and cyclohexenylcyclohexanone.
Patent GB-625924-A (GB)
Title: Improvements in process for the production of penicillin
IPC: C07D499/18
Filed: 1946-11-14
Abstract: Penicillins and salts thereof (e.g. sodium, calcium or amine salts) are recovered from solutions containing them by purifying the solution until the solids therein have a degree of purity equal to at least 500 (preferably over 1000) Oxford units per milligram and then subjecting the solution to spray-drying, e.g. by spraying the solution (e.g. by means of nozzles or advantageously by means of a whirling disc atomizer) into a drying gas (e.g. air, nitrogen, carbon oxides or combustion gases) at about 150-500 DEG  F. at such a rate that the compound is obtained in the form of a substantially dry fine powder (with a moisture content of less than about 5 per cent, preferably less than 2.5 per cent).  Further traces of moisture may be removed by vacuum drying.  Examples describe the drying of solutions of calcium penicillin.
Patent GB-282419-A (GB)
Title: Improvements in grates for use in retorts
IPC: C10J3/34
Filed: 1927-12-14
Abstract: 282,419. Parker, R. B. Dec. 14, 1926, [Convention date]. Retorts.-A grate strucure for use in retorts comprises a series of boxes 9 supported on beams 8 and supplied with gas or liquid, which may be combustible, and supporting perforated hollow grate bars 2 to which gas. &c. is supplied through apertures 11 in the boxes. The boxes may be arranged in groups each supplied with gas or liquid by a valve-controlled pipe 12. The partitions 10 separating the boxes in each group are perforated at 11. Specifications 282,415 and 282,416 are referred to.
Patent GB-1168802-A (GB)
Title: Self-Retracting Diverter Valve in Combination with a Water Top and Shower Head
Inventor: WATTS HORACE
IPC: F16K11/044
Filed: 1966-07-28
Abstract: 1,168,802. Valves. H. WATTS. 26 Oct., 1967 [28 July, 1966], No. 33913/66. Heading F2V. A diverter valve for use with a tap and shower head comprises a casing 1 enclosing a chamber 5 connecting at least one inlet and two outlet ports 3, 4, ports 9, 11 at opposed ends of the chamber leading to the respective outlets, a closure member 6 within the chamber reciprocable between the ports so as to close one outlet when moved to a first position and the other outlet when moved in the opposite direction, the member being biased to the first position by a spring 8 and including a stem 10 extending to the exterior of the casing, and operating means disposed at the exterior end of the stem to enable the closure member to be pushed to the second position against the action of the spring. In the preferred embodiment, two inlets at right angles to the plane of the Figure are provided at opposite ends of the chamber 5 and the closure member 6 is held against the seat 11 by water pressure when the outlet 4 which leads to the shower head is open. If the water pressure is low, the valve may be provided with a weaker spring and the spindle seal 14 be omitted to enable the closure member to be returned to the seat 9 when the water is turned off.
Patent GB-1531909-A (GB)
Title: Automatic adjustment of a mask with respect to the surface of a substrate body
IPC: H01L21/263
Filed: 1976-08-16
Abstract: 1531909 Photo-electric control of alignment SIEMENS AG 16 Aug 1976 [3 Sept 1975] 33993/76 Heading G1A [Also in Division G2]  Mask 91 is aligned with semi-conductor substrate 1 by means of at least four marks on the latter, which marks may take the form of Fig. 3. The mask has correspondingly located light transmissive areas (apertures) 51-54. During alignment a diaphragm 93 having apertures 931-934 blocks light except that passing through the mask alignment apertures. A converging beam 10 illuminates the substrate via mask and diaphragm. Light hitting the alignment recesses in the substrate surface is reflected away and does not reach photo-cells 84, 86 &c. Motors responsive to the photo-cell outputs cause movement of mask 91 in X and Y and rotation about a vertical axis to attain minimum detected intensity conditions, indicating alignment. Marks on the substrate may comprise arrays of recesses for fine adjustment purposes. Different wavelengths of illuminating light i.e. green or 436nm may be used for use with the rough and fine adjustments.